Outer material is soft-touch TPU with EVA foam backing. That insures the durability and softness of the ball. The Dali II Ball is constructed with classical hand stitched technology with 5 ply thread that provides us with high quality stitching and strong bound. 4 ply poly-cotton lining system increases the strength, power & controal. Shinny surface combined with 32 panel contruction for optimum aerodynamic control. This ball retains its shape and weight in all weather condition for best performance.